Add support for podman (#343)

Helps to test #331. No reason that docker should work and podman
shouldn't.


![image](https://github.com/user-attachments/assets/598c914d-09ca-4124-af43-49d52c230b43)

CHANGELOG.md

@@ -11,9 +11,14 @@ The format is based on [Keep a Changelog].
 * `gdformat` for [gdscript](https://docs.godotengine.org/en/stable/tutorials/scripting/gdscript/gdscript_basics.html) ([#342]).
 * `prettier-json-stringify` ([#183]).
 
+### Internal
+* You can run the formatter tests locally with podman instead of
+  docker now, if you want. Export `USE_PODMAN=1` ([#343]).
+
 [#183]: https://github.com/radian-software/apheleia/pull/183
 [#339]: https://github.com/radian-software/apheleia/pull/339
 [#342]: https://github.com/radian-software/apheleia/pull/342
+[#343]: https://github.com/radian-software/apheleia/pull/343
 
 ## 4.3 (released 2024-11-12)
 ### Features

scripts/docker-run.bash

@@ -4,9 +4,13 @@ set -euo pipefail
 
 repo="$(git rev-parse --show-toplevel)"
 
-docker=(docker)
-if [[ "$OSTYPE" != darwin* ]] && [[ "$EUID" != 0 ]]; then
-    docker=(sudo -E "${docker[@]}")
+if [[ -z "${USE_PODMAN:-}" ]]; then
+    docker=(docker)
+    if [[ "$OSTYPE" != darwin* ]] && [[ "$EUID" != 0 ]]; then
+        docker=(sudo -E "${docker[@]}")
+    fi
+else
+    docker=(podman)
 fi
 
 it=()

test/formatters/build-image.bash

@@ -14,9 +14,13 @@ fi
 
 cd "$(dirname "$0")"
 
-docker=(docker)
-if [[ "$OSTYPE" != darwin* ]] && [[ "$EUID" != 0 ]]; then
-    docker=(sudo -E "${docker[@]}")
+if [[ -z "${USE_PODMAN:-}" ]]; then
+    docker=(docker)
+    if [[ "$OSTYPE" != darwin* ]] && [[ "$EUID" != 0 ]]; then
+        docker=(sudo -E "${docker[@]}")
+    fi
+else
+    docker=(podman)
 fi
 
 args=()